21811270 ÷ 631 
We're looking to find how many times 631 goes into 21811270.

Moving on to step 1:
When dividing 2 by 631, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 631

Step 2:
21 divided by 631 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Grab the next digit (8) from the dividend, add it to 21, then carry on: 218 / 631

Going ahead to step 3:
If we divide 218 by 631, we get 0 and a remainder of 218.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 218 leaves us with 218.
Grab the next digit (1) from the dividend, add it to 218, then carry on: 2181 / 631

Going ahead to step 4:
631 goes into 2181 3 times with a remainder of 288.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 1893 from 2181 and we're left with 288.
Bring next digit (1) of the dividend behind the 288 and repeat the process: 2881 / 631

On to step 5:
631 can be fit into 2881 4 times, resulting in a remainder of 357.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
If we subtract 2524 from 2881, we get 357.
Fetch the next digit (2) from the dividend, attach it to 357 and continue: 3572 / 631

Advancing to step 6:
631 goes into 3572 5 times with a remainder of 417.
Use 5 as the next digit of our solution. 
Result so far: 345.0
If we subtract 3155 from 3572, we get 417.
Grab the next digit (7) from the dividend, add it to 417, then carry on: 4177 / 631

Going ahead to step 7:
631 goes into 4177 6 times with a remainder of 391.
The number 6 becomes the next digit in our result. 
Result so far: 3456.0
Subtracting 3786 from 4177 leaves us with 391.
Take the next digit (0) from the dividend and append it to 391, then repeat: 3910 / 631

Going ahead to step 8:
When dividing 3910 by 631, we get 6 with a remainder of 124.
Use 6 as the next digit of our solution. 
Result so far: 34566.0
Subtract 3786 from 3910 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 9:
When dividing 1240 by 631, we get 1 with a remainder of 609.
Put 1 as the next digit of the answer. 
Result so far: 34566.1
Subtract 631 from 1240 to get 609.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6090, and continue the process.

Step 10:
If we divide 6090 by 631, we get 9 and a remainder of 411.
Use 9 as the next digit of our solution. 
Result so far: 34566.19
Subtracting 5679 from 6090 leaves us with 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

Advancing to step 11:
4110 divided by 631 is 6 with a remainder of 324.
Use 6 as the next digit of our solution. 
Result so far: 34566.196
Deduct 3786 from 4110 and we're left with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 12:
When dividing 3240 by 631, we get 5 with a remainder of 85.
The number 5 becomes the next digit in our result. 
Result so far: 34566.1965
The remainder is 85 after subtracting 3155 from 3240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 13:
When dividing 850 by 631, we get 1 with a remainder of 219.
The next digit of our result is 1. 
Result so far: 34566.19651
Deduct 631 from 850 and we're left with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Step 14:
The number 631 fits into 2190 3 times, leaving a remainder of 297.
Record the quotient 3 as the next digit in the result. 
Result so far: 34566.196513
Subtract 1893 from 2190 to get 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2970, and continue the process.

Step 15:
The number 631 fits into 2970 4 times, leaving a remainder of 446.
The number 4 becomes the next digit in our result. 
Result so far: 34566.1965134
The remainder is 446 after subtracting 2524 from 2970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Advancing to step 16:
631 goes into 4460 7 times with a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 34566.19651347
Deduct 4417 from 4460 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Our division results in 34566.19651347 with a remaining 4.3e-08.